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Expired Canadian patentCanada

Apparatus for growing tubular crystalline bodies

CA 1198035 A · Owner: Mobil Solar Energy Corporation · Inventors: Eriss, Lawrence; Stormont, Richard W.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Apparatus for growing hollow tubular crystalline bodies from the melt includes, in a preferred embodiment, a capillary die of the desired shape a, seed holder having a cross section of similar shape and to which a plurality of elongate seeds may be attached, and an inner after heater of substantially similar shape but smaller size supported from the die by an inner radiation shield.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted December 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 23, 1982
GrantedDecember 17, 1985
Term endedDecember 17, 2002
Patent numberCA 1198035 A
Classification (IPC)C30B15/24 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 23, 1982Patent grantedDec 17, 1985Term endedDec 17, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.